Core framing, measurement, and materials concepts tested on entry-level carpentry apprenticeship and licensing exams.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the standard spacing for wall studs in residential framing?
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16 inches on center (or 24 inches on center for some applications)- What is the purpose of a header in framing?
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To support the load above an opening like a door or window- What is the standard spacing for floor joists in residential construction?
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16 inches on center (or 12 inches or 24 inches depending on span and lumber grade)- What does 'on center' mean in framing?
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Measured from the center of one member to the center of the next member- What is a stud?
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A vertical framing member that forms the skeleton of a wall- What is a plate in framing?
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A horizontal member that runs along the top or bottom of a wall (top plate or sole plate)- What is the difference between a rafter and a joist?
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Rafters are angled members that form a roof, joists are horizontal members that form a floor- What is a ledger board?
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A board bolted to the side of a rim joist or band board to support a deck or addition- What is the standard lumber size designation for what is actually 1.5 by 3.5 inches?
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2 by 4 (nominal sizing, actual dimensions are smaller)- What does 'nominal size' mean for lumber?
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The size a piece of wood is called, not its actual finished dimensions- What is the actual thickness of a 1-inch board?
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Approximately 0.75 inches for surfaced lumber- What is a moisture meter used for?
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To measure the moisture content of wood to prevent warping and shrinking- What grade of lumber is typically used for structural framing?
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No. 2 or better (or similar structural grades like Select Structural)- What is the purpose of a rim joist?
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To close off the edge of a floor system and provide a nailing surface- What is a blocking?
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Short pieces of wood installed between framing members to provide support, bracing, or a nailing surface
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